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DJ type surface bumper jar is used to produce downward jarring force on drilling platforms only. On the platform, the jarring tonnage can be adjusted in real time, with reliable performance and convenient use. If an accident occurs, the jar can be quickly connected to the drill string to achieve the jarring operation; the effect of dealing with the keyseat sticking, reduced diameter sticking and stuck sticking accidents is particularly significant.


In order to timely and accurately provide the products you need, please confirm the following when choosing jar products:
1. When ordering, please indicate the product model completely. (Please refer to the brochure for the specific product model.) If the product you ordered has been modified, we will supply the latest model without notice.
2. Unless otherwise directed, we will supply the product with our company's standard thread.
3. When ordering accessories and removal tools, please specify the model of jar, the name and the quantity of accessories and removal tools, and the past contract number. 
4. If you have any questions when choosing a product model, please contact us.
In order to timely and accurately provide the products you need, please confirm the following when choosing jar products:
1. When ordering, please indicate the product model completely. (Please refer to the brochure for the specific product model.) If the product you ordered has been modified, we will supply the latest model without notice.
2. Unless otherwise directed, we will supply the product with our company's standard thread.
3. When ordering accessories and removal tools, please specify the model of jar, the name and the quantity of accessories and removal tools, and the past contract number. 
4. If you have any questions when choosing a product model, please contact us.
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Tianhe Oil Group Huifeng Petroleum Equipment CO. ltd.